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Section 1: Magnets and Magnetism
Section 2: Magnetism from Electricity
Section 3: Electricity from Magnetism
Electromagnetism's History
Vocabulary/Words to Know
100
These are two ways to demagnetize a magnet.
What are dropping a magnet, hitting it too hard, increasing the magnet's temperature, and putting it in a strong magnetic field opposite of its own? (Any two work)
100
This is made up of a solenoid wrapped around an iron core.
What is an electromagnet?
100
This is the process where an electric current is made from changing a magnetic field.
What is electromagnetic induction?
100
This is the British man who first published his results and went further into detail, therefore making his results better known.
Who is Michael Faraday?
100
This is any material that attracts iron things or things made of iron.
What is a magnet?
200
This is exerted when you bring two magnets close together.
What is a magnetic force?
200
This is an everyday object consisting of two solenoids, one that drops an electric field and one that causes a current.
What is a doorbell?
200
This person first discovered electricity could be made from a magnetic field, but his results are less known.
Who is Joseph Henry?
200
This was the device that helped Faraday determine if there was an electric current in the second wire in his experiment.
What is a galvanometer?
200
This a device that converts electrical energy into mechanical energy.
What is an electric motor?
300
This is how you make a magnet from something make up of iron, cobalt, or nickel.
What is lining up the domains?
300
This is a coil of wire that produces and magnet field when carrying an electric current.
What is a solenoid?
300
This is what slip rings touch to release an electric current in an electric generator.
What is a pair of brushes?
300
This is what Faraday discovered would make an electric current in the second wire.
What is changing the magnetic field, which is changed when the battery was disconnected or connected?
300
This is a device that converts mechanical energy into electrical energy.
What is an electric generator?
400
These are the two types of magnets.
What are ferromagnets and electromagnets?
400
These are in all electric motors and consist of a loop or coil of wire that can rotate.
What are armatures?
400
This determines whether a transformer decreases or increases voltage.
What is the number of loops in the primary and secondary coils?
400
This is another result from Faraday's experiment.
What is moving either a magnet or the wire changes the magnetic field around the wire?
400
This is a device that increases or decreases the voltage of an alternating current.
What is a transformer?
500
These are the scientific names for the light shows at the Earth's two poles.
What is the aurora borealis and the aurora australis?
500
This is the scientist that discovered the relationship between electricity and magnetism, his nationality, and the year he discovered this relationship.
What is Hans Christian Oersted, Danish (Dutch), and 1820?
500
This is the number of times electrical energy is transformed before it reaches your home, and this is the number of down-step transformers are used.
What is three and two?
500
This is the person that deserves the credit for the discovery of if a magnetic field could make an electric current, and the explanation behind your decision.
This is an opinion question, so there is truly no answer to write here. This is merely a question to get you thinking, not only about the scientific sense of 'Faraday was first to publish, he deserves credit,' but about the fact that Henry was first to discover it. The purpose is only to get you thinking and think about, in depth, who really deserves credit, and not just merely read it over. So what's your opinion? A class wide discussion made be needed to see what everyone thinks. Hint hint Mrs. Cross.....
500
This is the name the Greeks gave to the mineral that they discovered that attracted things made or iron.
What is magnetite?